Data

An in-memory store, a row type, and a mapper. This is where the API client would sit.

clean-architectureflutter

lib/features/notes/data/. The repository implementation is inside the feature. The composition root is the only file outside the feature that imports it. NoteStore is an in-memory list of rows. The repository does not call HTTP.

dart

factory NoteRow.fromNote(Note note) {
  return NoteRow(
    id: note.id,
    title: note.title,
    body: note.body,
    createdAtMicros: note.createdAt.microsecondsSinceEpoch,
  );
}

save appends a row and returns nothing. findAll maps each row with toNote, which uses the Note constructor. Rows here were written after Note.create, so the list keeps a title the domain already accepted. A store that can hold a row create would refuse should follow Infrastructure: run the invariant on load, or fail the load.

The files are lib/features/notes/data/note_row.dart and lib/features/notes/data/note_repository_impl.dart. flutter test starts no server because the list is the store.

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